planetary differentiation wikipedia - EAS
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檢視所有 Wikipediahttps://en.wikipedia.org/wiki/Planetary_differentiationIn planetary science, planetary differentiation is the process by which the chemical elements of a planetary body accumulate in different areas of that body, due to their physical or chemical behavior (e.g. density and chemical affinities). The process of planetary differentiation is mediated by partial … 查看更多內容
Although bulk materials differentiate outward or inward according to their density, the elements that are chemically bound in them fractionate according to their chemical affinities, "carried along" by more abundant materials with which they are associated. For … 查看更多內容
Core formation utilizes several mechanisms in order to control the movement of metals into the interior of a planetary body. … 查看更多內容
When the Sun ignited in the solar nebula, hydrogen, helium and other volatile materials were evaporated in the region around it. The 查看更多內容
On the Moon, a distinctive basaltic material has been found that is high in "incompatible elements" such as potassium, rare earth elements, and phosphorus and is often referred to by the abbreviation KREEP. It is also high in uranium and thorium. … 查看更多內容
CC-BY-SA 授權下的維基百科文字Planetary differentiation - Simple English Wikipedia, the free …
https://simple.wikipedia.org/wiki/Planetary_differentiationIn planetary science, planetary differentiation is the process of separating out different parts of a planetary body where the planetary body develops into distinct layers. The denser materials …
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- https://en.wikipedia.org/wiki/Iron_catastrophe
The iron catastrophe was a postulated major geological event early in the history of Earth, where heavy metals such as iron and nickel congregated in the core during a geologically brief period.
The original accretion of the Earth's material into a spherical mass is thought to have resulted in a relatively uniform composition. While residual heat from the collision of the material that formed the Earth was significant, heating from radioactive materials in this mass gradually increased the t…Wikipedia · CC-BY-SA 授權下的文字- 預估閱讀時間: 3 分鐘
- https://handwiki.org/wiki/Astronomy:Planetary_differentiation
- Gravitational separation
High-density materials tend to sink through lighter materials. This tendency is affected by the relative structural strengths, but such strength is reduced at temperatures where both materials are plastic or molten. Iron, the most common element that is likely to form a very dense molten …
- Gravitational separation
- https://en.wikipedia.org/wiki/Protoplanet在「en.wikipedia.org」查看更多資訊A planetesimal is an object formed from dust, rock, and other materials, measuring from meters to hundreds of kilometers in size. According to the Chamberlin–Moulton planetesimal hypothesis and the theories of Viktor Safronov, a protoplanetary disk of materials such as gas and dust would orbit a star early in th…
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planetary differentiation - Wikidata
https://www.wikidata.org/wiki/Q910022formation of distinct layers in a planet This page was last edited on 18 December 2022, at 09:58. All structured data from the main, Property, Lexeme, and EntitySchema namespaces is …
- https://en.wikipedia.org/wiki/Talk:Planetary_differentiation
Planetary differentiation is part of WikiProject Geology, an attempt at creating a standardized, informative, comprehensive and easy-to-use geology resource. If you would like to participate, …
Internal structure of Earth - Wikipedia
https://en.wikipedia.org/wiki/Internal_structure_of_EarthThe internal structure of Earth is the solid portion of the Earth, [clarification needed] excluding its atmosphere and hydrosphere. The structure consists of an outer silicate solid crust, a highly …
- https://en.wikipedia.org/wiki/Differential_(mechanical_device)
Hypoid gear pair that connects an automotive drive shaft to a differential. In rear-wheel drive automobiles the central drive shaft (or prop shaft) engages the differential through a hypoid gear (ring and pinion). The ring gear is mounted …
- https://en.wikipedia.org/wiki/Differentiation
Differentiation (ethnography), the invention of ostensible differences between cultures. Differentiation (linguistics), in semantics, a meaning shift reached by "adding concepts to the …
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